MTS Temposonics ® GB series (GBS/GBN) analog magnetostrictive linear displacement sensor

Product positioning and measurement principles

1. Product positioning

The GB series (GB-J/GB-K/GB-S/GB-N) is a compact rod type analog displacement sensor designed by MTS specifically for hydraulic cylinders, valve groups, and narrow spaces. It is non-contact, wear-resistant, maintenance free, and suitable for high-pressure and high-temperature industrial environments.

2. Measurement principle

Using Temposonics ®  Magnetostriction technology:

The current pulse generates a magnetic field in the waveguide wire, which interacts with the magnetic field of the position magnet to generate a torque pulse

Pulses propagate at a fixed speed and are converted to absolute position based on flight time

Advantages: non-contact, no wear, absolute measurement, high precision, high durability

Model and Material

Model shell material, measuring rod material, flange/rod diameter, pressure resistance

GB-J 1.4305(303) 1.4301(304) Ø21mm/Ø12.7mm 800bar

GB-K/S 1.4305(303) 1.4306(304L) Ø18mm/Ø10mm 350bar

GB-N 1.4404(316L) 1.4404(316L) Ø18mm/Ø10mm 350bar

Core performance parameters

1. Measurement parameters

Range: 25~3250mm

Resolution: 16 bits, minimum 1 μ m

Linearity: ≤± 0.02% FS (typical ± 0.005% FS)

Response time: 0.5ms (≤ 1200mm)/1ms (≤ 2400mm)/2ms (>2400mm)

Repeatability accuracy: better than ± 0.001% FS

2. Environmental parameters

Working temperature: standard -40~+90 ℃; Optional -40~+100 ℃

Protection level: IP67 (connector)/IP68 (cable outlet)

Impact resistance: 100g (IEC 60068-2-27)

Vibration resistance: 15g, 10-2000Hz (IEC 60068-2-6)

Pressure resistance: 350bar, peak value 700bar; GB-J peak value 800 bar

3. Electrical parameters

Power supply: 24VDC (-15%~+20%)

Power consumption: Typical 100mA

Output signal:

Voltage: 0~10VDC, 10~0VDC

Current: 4 (0)~20mA, 20~4 (0) mA, 0~20mA, etc

Protection: Reverse connection protection (-30VDC), overvoltage protection (36VDC), insulation 500VDC

Mechanical and Interface

Installation: Any angle, press in flange installation

Connector:

M12 (5-pin, A-coded）

M16 (6-pin)

Direct cable outlet (PUR/Teflon/silicone)

Programming: Supports handheld programmers and cabinet programmers, and can set the starting/ending point on site.

Standard accessories

Magnet: Circular OD33/OD25.4, U-shaped OD33

Sealing: O-ring, retaining ring

Cable: PUR/Teflon/Silicone Shielded Cable

Connector: M12/M16 straight head/elbow

Tool: Analog Programming Kit

Key issues

Question 1: What are the core differentiation advantages of GB series compared to conventional R series sensors?

Answer: The GB series has a flat and compact design, which is more suitable for valve groups and narrow spaces; All stainless steel material has stronger corrosion resistance; The maximum working temperature reaches+100 ℃; Higher pressure resistance (GB-J up to 800 bar); Specially optimized for integrated scenarios such as hydraulic valves and small oil cylinders.

Question 2: What are the analog output signals of GB series and how are they wired?

Answer: Supports voltage (0~10V/10~0V) and current (4~20mA/20~4mA/0~20mA);

M12 interface: Pin1=24V, Pin2=signal, Pin3/5=GND, Pin4=reverse signal

M16 interface: Pin1=signal, Pin5=24V, Pin2/4/6=GND, Pin3=reverse signal

Question 3: How to choose materials and withstand voltage for different models (J/K/S/N) in the GB series?

answer:

Pursuing the highest pressure resistance, choose GB-J (800bar);

Pursuing strong anti-corrosion, choose GB-N (316L all stainless steel);

GB-S/K (350bar, Ø 10mm thin rod) is selected as the universal high-pressure compact type.